From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 0/24] Nested VMX, v5 Date: Sun, 17 Oct 2010 14:10:58 +0200 Message-ID: <4CBAE7D2.2050602@redhat.com> References: <1276431753-nyh@il.ibm.com> <4C1621E5.5040201@redhat.com> <20100614130341.GA4455@fermat.math.technion.ac.il> <4C174F36.2060008@redhat.com> <20101017120310.GA12274@fermat.math.technion.ac.il> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: "Nadav Har'El" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:15796 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751893Ab0JQMLG (ORCPT ); Sun, 17 Oct 2010 08:11:06 -0400 In-Reply-To: <20101017120310.GA12274@fermat.math.technion.ac.il> Sender: kvm-owner@vger.kernel.org List-ID: On 10/17/2010 02:03 PM, Nadav Har'El wrote: > On Tue, Jun 15, 2010, Avi Kivity wrote about "Re: [PATCH 0/24] Nested VMX, v5": > > I've tried to test the patches, but I see a vm-entry failure code 7 on > > the very first vmentry. Guest is Fedora 12 x86-64 (2.6.32.9-70.fc12). > > Hi, as you can see, I posted a new set of patches, which apply to the current > trunk. Can you please give it another try? Thanks! > > Please make sure you follow the instructions in the introduction to the > patch. In short, try running the L0 kernel with the "nosmp" option, What are the problems with smp? > give the > "-cpu host" option to qemu, Why is this needed? > and the "nested=1 ept=0 vpid=0" options to the > kvm-intel module in L0. Why are those needed? Seems trivial to support a nonept guest on an ept host - all you do is switch cr3 during vmentry and vmexit. -- error compiling committee.c: too many arguments to function